Vehicle wheel-tire.



J. l. RlCHARDS.

I'CLE WHEEL TIR APPL AT N FiLED NOV. 17|

Patented Nov. 16, 1915.

JOSEPH I. RICHARDS, 0F SAN' FRANCISCO, CALIFORNIA.

VEHICLE WHEELTIRE.

Meneses.

Application :ned November 17, 1914.

To all whom t may concern.' Be it known that I, JOSEPH l. RICHARDS, a citizen of the United States, residing at the city and county of San Francisco and State of California, have linvented certain new and useful mprovements in Vehicle Willem/Fixes, of which the following is a specication.

My invention relates to the general class of vehicle-wheel tires and particularly to those of the pneumatic type.

The object of my invention is to provide a simple, durable, inexpensive and practical non-puncturable and non-skidding pneumatic tire; and to this end my invention consists .in the novel tire which I shall now describe by reference to the accompanying drawings, in which- Figure -1 is a cross section of my tire, Fig. 2 is a side view, reduced, of an arc-or section of the tire, broken away, to show it at different depths, on the lines -m and wel l is the wheel-.telly and 2 is the rim, here shown as of the demountable type. The rim 2 is fashioned or provided on each side with a; fastening for the tire-casing, which fastening may be of any approved type. For illus tration, l here show it asa clencher 3. The

rim 2' is further provided or formed with a median circumferential ridge t, which, at each side, is formed with a clencher 5, and in its middle with a seat 6 for a circumferential cushion 7, preferably of rubber. The rim 2 has thus two pairs of opposing clench` ers forming a seats. ln these are fitted the tire-casings 8, each casing containing an inner tube 9, adapted to he inflated, in the usual manner, thus providing apair of pneumatic members.

10 is the tire-tread, the back portion l1 of said tread member being shaped to conform to and to fit in the inter-casing space. said back port1on 1s concaved' 'lhe base of at lf2 to conform to the cushion 7. Between the tread member and the tire casings is a layer or layers of fabric 13, to serve as a grip or an anti-creep member for adjacent surfaces.

lt will be noted that the rim seats for the tire casings are tilted or inclined down- 1rd toward cach other so that the two c.; ms lean inwardly toward each other. his results in a vise-like grip oirthe tread member under the inflation pressure ot' the Specification of Letters Patent.

pair of side by side casing` Patented Nov.y i6, 1915. serial no. 872,557.

able durable and nonpuneturable materialA adapted for such use, such, for example, as pressed' fiber. I do not, however, confine myself to this material, as other materials, may be used, metallic or otherwise. The tread, in extent, covers the danger eX- posed area of the two casings, so that the latter are protected from Wear,'and fromv puncture or cuts, or like injuries, though yielding their full pneumatic elfect. The tread by thus covering a pair of casings, is necessarily relatively' wide and this may be taken advantage of to malte it relatively fiat, that is, on a curve of long radius. Thisvis of value in rendering it less liable to slip or skid. The easings and inner tubes being in pairs, may be relatively small ones. Consequently, motorcycle and even bicycle tires are available for automobiles. Herein lies one of the principal advantages of my invention, namely, marked economy in `first cost.

lW hen the pneumatic members of the tireV are inflated, the base l2 of the back portion of the tread 10 is held away from contact with the cushion 7. But when, by leakage, the tires become partially deflated, the tread then rests its base upon the cushion 7, thereby saving the casings .from injury. The tread member is readily fitted to` place, and both pneumatic tubes being inflated simultaneously to the same pressure, an equal grip is imposed upon the back portion of said tread. The tread is easily renewable, and if it be damaged and no other tread be im'- mediately available, it may be removed and the vehicle may run temporarily on the easings or on either ofv them, or in case they, too, be out of commission, it may run on the cushion 7. The tread may have any suitable surface, smooth or rough.

I claim l. A vehicle wheel tire comprising a pair 'of independent pneumatic members-seated on a double rim, said double rim havinga central. connecting part formed to 'provide securing shoulders for the inside edges oi' the tires, and being continued outwardly f .to accord with the contour of the inflated portion of the tire to constitute outwardly extending seats therefor.

i 2. A vehicle wheel tire comprising a pair of independent pneumatic members sea-te on the wheel rim side by side, an independent tread membereovering the danger exposed area of the pneumatic members, 'said tread member having aback portion lying between and clamped by the pneumatic members when inflated, said wheel rim having a eeni 4trally connected part formed to provide securing shoulders for the inside edges of the tires, 4sind being -continued outwardly to aoeord with the contour of the iniated portion of the tires to constitute outwardly extending seats therefor, and an independent eusl ion member mounted between said securing shoulders on the wheel rim and in the plane of the back portion of the tread member, said back portion being normally separated from the cushion but adapted to on' when the pneumatic members are pertially deflated. l

In testimony whereof have signed my name to this specification in the presence of two subscribing witnesses.

`JOSEPH l. RICHARDS. Witnesses:

WM. F. Boo'rn, D. B. RICHARDS.

ride there 

